Cov Txuj Ci Tseem Ceeb ntawm Cov Chaw Kho Dej Phwj Siab Siab

Nrog rau kev loj hlob sai ntawm kev lag luam thiab kev loj hlob hauv nroog, cov dej khib nyiab uas muaj cov concentration siab tau dhau los ua teeb meem loj rau ib puag ncig. Cov dej khib nyiab uas muaj cov concentration siab tsis yog tsuas yog muaj ntau cov organic matter, cov inorganic substances, heavy metalls thiab lwm yam khoom phom sij, thiab nws cov concentration ntau dua li qhov tsim tau ntawm cov qauv ib txwm muaj.cov chaw kho dej khib nyiabYog li ntawd, kev kho thiab tso tawm cov dej khib nyiab uas muaj cov concentration siab yog qhov tseem ceeb heev.
1. Lub ntsiab lus thiab cov yam ntxwv ntawm cov dej khib nyiab uas muaj zog heev
Cov dej khib nyiab uas muaj ntau cov organic matter, cov hlau hnyav, cov tshuaj lom thiab cov tshuaj txaus ntshai thiab lwm yam pa phem. Cov pa phem hauv cov dej khib nyiab ntau dua li cov dej khib nyiab dav dav thiab nyuaj rau kho. Nws yuav muaj ntau hom pa phem sib txawv, xws li cov organic, cov hlau hnyav, thiab cov tshuaj radioactive. Qee cov pa phem yuav muaj kev cuam tshuam rau cov kab mob me me, cuam tshuam rau cov txiaj ntsig ntawm kev kho mob, thiab nyuaj rau tshem tawm los ntawm cov txheej txheem kho mob ib txwm muaj.
2. Cov xwm txheej ntawm kev tsim cov dej khib nyiab uas muaj cov concentration siab
Kev tsim tshuaj lom neeg: Cov dej khib nyiab uas tsim tawm thaum lub sijhawm tsim tshuaj feem ntau muaj cov organic matter, cov hlau hnyav thiab lwm yam kuab paug ntau heev.
Kev lag luam tshuaj: Cov dej khib nyiab tshuaj feem ntau muaj cov organic matter, tshuaj tua kab mob, thiab lwm yam, thiab nyuaj kho.
Kev lag luam zas xim thiab ntaub: Cov dej khib nyiab uas tsim los ntawm cov kev lag luam no feem ntau muaj ntau cov organic uas nyuaj rau lwj thiab chromaticity.
Electroplating thiab metallurgy: cov txheej txheem ntawm electroplating thiab metallurgy yuav tsim cov dej khib nyiab uas muaj cov hlau hnyav thiab cov tshuaj lom.
3. Cov thev naus laus zis tseem ceeb ntawm cov nroj tsuag kho dej phwj siab
Kev tsom mus rau siabchaw kho dej phwj tuaj, feem ntau yog siv cov txheej txheem lub cev lossis tshuaj lom neeg los tshem tawm cov khoom loj hauv cov dej khib nyiab, cov khoom khov kho, thiab lwm yam, los tsim cov xwm txheej rau kev kho mob tom qab. Kuj tseem yuav yog los ntawm xws li Fenton oxidation, ozone oxidation thiab lwm yam thev naus laus zis oxidation siab heev, los ntawm kev tsim cov oxidants muaj zog yuav nyuaj rau degrade cov organic teeb meem mus rau hauv cov tshuaj yooj yim degradable. Cov metabolism ntawm cov kab mob me me yog siv los tshem tawm cov organic teeb meem ntawm cov dej khib nyiab. Rau cov dej khib nyiab uas muaj concentrated heev, kev sib xyaw ua ke ntawm cov txheej txheem xws li anaerobic thiab aerobic yuav siv tau los txhim kho kev kho mob. Cov tshuaj yaj hauv cov dej khib nyiab kuj tseem yuav raug tshem tawm los ntawm cov txheej txheem lub cev los ntawm cov txheej txheem sib cais membrane xws li ultrafiltration thiab rov qab osmosis. Cov txheej txheem kho hlau hnyav xws li tshuaj precipitation, ion pauv thiab adsorption yog siv los tshem tawm cov hlau hnyav ions ntawm cov dej khib nyiab.
Yog li ntawd, rau qhov chaw kho dej phwj siab, kom ntseeg tau tias cov dej khib nyiab ua tau raws li tus qauv, kev xaiv cov txheej txheem kho kom zoo, kev tswj hwm nruj ntawm cov txheej txheem kho, txhawb nqa kev kho ua ntej, ua kom zoo dua cov kev ua haujlwm nrog rau kev sim thiab kev soj ntsuam tsis tu ncua yog qhov tseem ceeb heev, yog tias pom muaj teeb meem, ua raws li cov kev ntsuas kom kho raws sijhawm.

Lub chaw kho dej phwj siab vim yog qhov tshwj xeeb ntawm nws cov dej zoo, rau cov khoom siv muaj cov kev cai nruj, qhov xav tau kom muaj cov khoom siv thev naus laus zis zoo, kev paub txog project, nrog rau lub tswv yim ntawm cov xwm txheej hauv zos, txhawm rau kom ntseeg tau tias qhov siab ntawmcov khoom siv kho dej khib nyiabkom ua tau raws li cov qauv ntawm cov dej khib nyiab. Liding Environmental Protection yog lub Hoobkas kaum xyoo laus hauv kev lag luam kho dej khib nyiab, nyob hauv Jiangsu, kis thoob plaws lub tebchaws, ntsib txawv teb chaws, nrog pab pawg tswj xyuas cov khoom siv thev naus laus zis nruj.